Gin-saw filer



. 2 sheets-sheet 1. D. M. WILSON'. GIN SAW FILER'.

(No Model.)

Patented Mar. 22,- 1898.

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2 sheetssheet 2.

D. M. WILSON. GIN SAW PEER.

Patented Mar.-22, A1898.

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UNITED STATES EEICE.

PATENT DAVID M. WILSON, OF KEMP, TEXAS.

SPECIFICATION forming part of Letters Patent NO. 601,191, dated March22, 1898.

Application led'J une 25, 1897.

To all whom t may concern:

Be itk known thatI, DAVID M. WILSON, a citizen of the UnitedStates,residing at Kemp, in the county of Kaufman and State of Texas,have invented a new and useful Gin-Saw Filer, of which the following isa specification.

vMy invention relatesto gin-saw-filing machines, and has for its objectto provide a compact and efficient mechanism'having direct means forcommunicating motion to the reciprocatory and rotary files and forremoving the same from contact with the saw-teeth during the feeding ofthe saw, and, furthermore, to provide suitable means for adjusting thevarious parts of the mechanism to suit saws of different kinds andhaving teeth arranged at different intervals and beveled at differentangles.

Further objects and advantages of this invention vwill appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a plan view of a saw-filing machineconstructed in accordancey with my invention. Fig. 2 is a longitudinalsection of the same. Fig. 3 is a transverse section onthe line 3 3 ofFig. 1. Fig. 4 is detail view in perspective of the reciprocatorycarrier detached. Fig. 5 is a similar view of the feed-lever-operatingcam. Fig. 6 is a similar view of the iile-arm-displacing cam. Fig. 7 isa similar view of the gumming-le.

Similar numerals of reference indicate corresponding parts in all theigures of the drawings.

In reducing my invention to practice I have constructed a machine whichis adapted to be applied to saws of a ginning or equivalent machinewithout removing said saws from under certain circumstances in orderthat the frame of the filer may rest' against the con- 'tiguousverticalportion of the frame of they seria-N0. 642,300.V (No model.)

ginning-machine. The construction of the machine embodying my invention,however, is such as to adapt it to -work with equal facility in allpositions, and as it is desirable 'at times to dispose the filer in ahorizontal position and support it at its rear end by means of trestlesor the equivalents thereofvfor instance, as when theframe of theginning-machine is not suited tosupport and guide the same-I haveillustrated the machine in this position, a portion of a frame ortrestle for supporting the rear end of the machine being indicated indotted lines in Fig. 2.

The frame of the filer consists vof a plate 1, to which, contiguous toits rear end, are pivotally connected the rear ends of side arms 2, andsaid side arms terminate at their front ends in feet 3, which areadapted to be arranged upon opposite sides of a saw to be iled and to beseated upon'the contiguous spacing-blocks, whereby adjacent saws areheld in their proper positions. The front and rear ends of these sidearms are fitted in suitable guides 4:, formed in the contiguous portionsof the supporting-plate 1, andthe front ends of the arms are secured atthe desired adjustment, to vary the pitch of the supportingplate, bymeans of set-screws 5. By varying the pitch of the supporting-plate itis possible to adapt the machine for use in connec` tion with saws ofwhich the teeth vary in pitch as well as saws of different diameters.

Mounted to slide upon the supporting-plate in suitable front and rearguides 6 and 7 is a carrier 8, provided at an intermediate point with ayoke 9, in which operates an eccentric 10, carried by an operating-shaft11, which is mounted in bearings 12 and 13, formed, respectively, in thesupporting-plate and in a fixed longitudinal bar 14, supportedterminally by said guides 6 and 7. A crank 15, or other means forcommunicating motion to the mechanism, is fitted upon the operatingshaft11.

Fixed to and adapted to be reciprocated by the carrier are file-carryingarms 16, preferably of spring metal and constructed to exert a constantinward pressure and resist outward deflection, the extremities of saidarms being provided with iile-seats, which in the constructionillustrated consist of keepers 17, adapted to receive the rear ends-offiles 18 IOO and iitted with set-screws 19. lVedges 2O are adjustablyiitted in the keepers when necessary to vary the angular positions ofthe files with relation to the file-carrying arms, said wedges beinginterposed between the files and the arms and being adapted to vary theinclination of the former by the amount of their insertion. I alsopreferably employ auxiliary spring-arms 2l, secured to the file-carryingarms and provided with adjustable pressurepins 22, consisting ofsetscrews or .their equivalents to impin ge against the outer sides ofthe file-carrying arms contiguous to their front ends and exert more orless pressure according to the adjustment. of the set-screws. It isobvious that the tension of the auxiliary spring-arms may be varied bythe adjustment oi said set-screws.

In operation the rotation of the eccentric lO causes a reciprocatorymovement of the carrier and a corresponding movement of the files 1S incontact with opposite sides of the saw-teeth; but in order to enable thereciprocatory files to be removed from contact with the saw-teeth at thelimit of the rearward movement of the carrier and thus provide forfeeding the saw to bring different teeth successively into operativeposition I provide the inner sides of the file-carrying arms withcalnfaces 23 for cooperation with a iile-arm-displacing cam or block 2i,which is mounted for longitudinal adjustment upon the frame of themachine and is preferably secured at the-desired adjustment by means ofa setscrew 25, extending through a longitudinal slot 26. It is obviousthat by varying the adjustment of this cam-block 24 toward and from thefront of the machine the point in the movement of the carrier at whichthe tiles are displaced laterally to release the sawteeth may bearranged to suit the conditions of operation and the diameter of thesaw. The Iile carrying arms are preferably arranged in different planes,and hence in order to adapt the cam-block 24: to cooperate efficientlywith both arms I have constructed it, as shown in Fig. G, with an ear24, which projects toward the supporting-plate, and thus is arranged inthe path of that file-carrying arm which is located contiguous to theplane of said plate.

In connection with the abovedescribed mechanism I also employ agnmming-le 27, havinga spindle 2S disposed perpendicular to the plane ofthe supporting-plate l and having an attached pinion 29, with whichmeshes the teeth of a rack-bar 30, actuated by the carrier S. Thisrack-bar is formed on the front arm or slide 31 of the carrier, thelatter being slotted, as shown at 32, to receive the pinion when thecarrier is in its advanced position. The gummer, having a stationaryspindle, whereby the le is incapable of reciprocatory movement towithdraw it from and advance it into engagement with the sawteeth I haveprovided it, in order to release the saw-teeth at intervals, with a flator cutaway portion 33, which is of sufficient depth to allow thesaw-teeth to pass when located in a forward position or contiguous tothe saw.

The feeding devices which I prefer to employ in connection with themechanism, as above described, embodies an intermediatelypivoted feed-lever 34, carrying a yielding tooth 35, pivotally mounted upon thelever and disposed at the opposite end in operative relation with a cam3G, fixed to the operating-shaft ll, preferably upon the opposite sideof the supporting-plate from the file-Carrying arms in order to bewholly independent thereof in operation. This cam is provided at onepoint with an enlargement 37, which when brought into operative relationwith the contiguous end of they feed-lever moves the latter from theplane of the supporting-plate, and therebymoves the toothed end of thelever toward the plane of the plate to advance the saw the distance ofone tooth in the direction indicated by the arrow thereon in Fig. 2.

It will be understood that the special construction of the iiles isimmaterial to the essence of my invention; but the ordinarythreecornered file is that which I have found to be particnlary eihcientin this connection, and hence I have shown the file-engaging keepers 17of a construction adapted particularly for the reception of files ofthis class; but inasmuch as said keepers are detachablymonntcd upon theends of the file-carrying arms it is obvious that they may be replacedby keepers adapted to the special form of file which it is desired toemploy.

Furthermore, it will be seen that t-he operation of the carrier isdirectly dependent upon an eccentric carried by the driving-shaftlof themachine, thus dispensing with intermediate connections, and that thefeeding-cam is likewise carried by and hence receives its motiondirectly from the operating-shaft.

It will be seen, furthermore, that as the reciprocatory files becomeworn after continued use the tension-screws 22 maybe adjusted to applymore or less pressure of the auxiliary spring-arms 2l and thus add tothe pressure of the iile-carryin g arms toward the plane of the saw.

Various chances in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the spirit orsacrilicin g any of the advantages of this invention.

Having described my invention, what I claim isl. A gin-saw filer havinga base-plate supporting filing mechanism and provided with terminallongitudinally-alined open-ended slots, supporting-arms pivotallymounted at their rear ends in the rear slots, terminating at their frontends in feet, and provided with extensions operating in the front slotsof the base-plate, means for adjusting the pivotal points of the arms,and set-screws mounted in the walls of the front slots and impingingagainst said extensions of the arms to lock IOO IIO

them at the desired angular adjustment, substantially as specified.

2. A saw-filer havinga supporting-plate, a reciprocatory carrier guidedfor longitudinal movement and having a laterally-elongated yoke, aneccentric operating in said yoke for imparting reciprocatory movement tothe carrier, a cam carried by the spindle of the eccentric,iile-carrying arms on the carrier, and a feed-lever having a'tooth toengage the sawteeth and terminally arranged in the path of said cam,substantially as speciied.

3. A saw-filer having a -reciprocatory carrier provided'with alongitudinal rack-bar, and a terminalguide-arm spaced from the rack-bar,means for operating the carrier, iilecarrying arms mounted upon thecarrier, a

rotary gumming-iile having its spindle mounted in fixed bearings andprovided Witha pinion .meshing With said rack-bar and operating betweenthe same and the guide-arm, said gumming-le having a'peripheral cut-awayportion,and saw-feeding mechanis1n,substan tially as speciied.

4.. A saw-filer having a reciprocatory carrier and means for actuatingthe same, of spring-actuated file-carrying armsA reciprocated by thecarrier, and having cam-faces,

:and a file-arm-displacing cam to coperate with said camffaces andlaterally displace the v rile-arms, substantially as speciiied.

y 5. A saw-filer having a carrier, spring-actuated iile-arms supportedby the carrier and having cam-faces, means for actuating the carrier, acam-block interposed between the {ile-arms and capable'of adjustmentparallel ing means, spring ijle-arms on the carrier,

- spring-arms mounted on the carrier, andv tension-screws mounted on thespring-arms and impinging against the file-arms, substantially asspecified. e

8. A saw-filer having a reciprocatory carrier and operating means, arotary gulnmingle having a pinion, and a rack on the carrier meshingWith the pinion, substantially as specied. p

9. A saw-iiler having a rotary circumferentially concentric gumming-ileprovided at one side With a peripheral iiat or cut-away portion to giveclearance for saw-teeth, and operating devices'v for communicatingrotary motion alternately in opposite directions to the gumming-le,substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two Witnesses.

DAVID M. WILSON.'

Witnesses:

EDWARD B. TNYGLE, GEORGE J. HOLLEY.

